Adjustable actuating member



10, 1949- I \-N. E. PARISH 2,469,570

ADJUSTABLE ACTUATING MEMBER Filed .Sept 29 1947 I INVENTOR. WILLARD/E- PAH! 51-1 ATTORNEYS Patented May 10, 1949 ADJUSTABLE ACTUATING MEMBER Willard E. Parish, Syracuse, N. Y., assig'nor to Grouse-Hinds Company, Syracuse, N. Y., a corporation of New York Application September 29, 1947, Serial No. 776,731

1 Claim.

In describing this invention, reference is had to the accompanying drawings in which like characters designate correspondin parts in all the views.

Figure 1 is a side elevational View of a structure embodying my invention.

Figure 2 is an elevational view looking to the right, Figure 1.

Figure 3 is an elevational view looking upwardly in Figures 1 and 2.

Figure 4 is a view taken on line l4, Figure 3.

Figure 5 is a perspective view of the structure.

The actuating member is shown in the nature of a cam formed with a bore to receive a shaft H and having a portion extending radially from the opposite side of the shaft, this portion being preferably split to form legs l2, IS.

The shaft is formed with circumferentially spaced teeth [4, and the leg portions l2, l3, of the hub are formed with a bore I5 in which is rotatably mounted a screw l6. This bore extends transversely across the shaft, and the arrangement is such that the threaded portion I! of the screw engages the teeth l4. With this arrangement, rotation of the screw I6 effects relative rotation between the actuating member and the shaft l I.

The screw [6 is held from axial movement in one direction by an enlarged head portion [8 engaging the actuating member at one end of the bore I5. The opposite end of the screw is threaded to receive a clamping screw [9 carrying a washer 20 engaging the opposite side of the actuatin member. The inner end of the screw I9 is preferably swedged over, as at 2|, to prevent its detachment, or removal, from the adjusting screw I6. The bead 2| also limits withdrawal of screw [9 from screw l6 and thereby limits the end play of screw I6 during the adjustment of cam II].

The screw 19, when tightened, serves to clamp or look the screw l6 from rotation, as will be apparent, and it also compresses the leg portions i2, 93', together, clamping the hub portion of the actuating member on the shaft to hold the same from axial movement on the shaft.

With this structure, a cam, or similar element, can be conveniently adjusted on its carrying shaft and, because of the worm gear arrangement, the adjustment can be made with considerable precision.

What I claim is:

A shaft, an actuatin member carried thereon, a screw rotatably mounted in the actuating member, said shaft being formed with a plurality of circumferentially spaced apart teeth, said screw being cooperable with said teeth upon rotation to effect relative rotation between the shaft and the actuating member, a second screw having threaded engagement with said first screw and being cooperable therewith and with said actuating member to clamp said first screw against rotation.

WILLARD E. PARISH.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 642,710 Palmer Feb. 6, 1900 866,184 Brison Sept. 17, 1907 1,421,408 Collyer July 4, 1922 1,623,262 Nelson Apr. 5, 1927 1,663,290 Bendix Mar. 20, 1928 

